Free C2090-619: IBM Informix 12.10 System Administrator Exam Questions and Answers
75 verified practice questions for C2090-619.
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Last updated: September 19, 2026
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- C2090-619
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Question #1
Which ONCONFIG parameter would you use to disable the automatic creation or extension of chunks?
Please select an optionIncorrectCorrect answer: C
SP_AUTOEXPAND controls automatic expansion of chunks and creation of new chunks from the storage pool; setting it to 0 disables that behavior.
Was this answer correct?Question #2
When free memory is limited, which configuration parameter should be set to allow critical database activities to complete successfully?
Please select an optionIncorrectCorrect answer: C
LOW_MEMORY_RESERVE sets aside a block of memory that the server uses only for critical activities, so those can still complete when free memory is exhausted.
Was this answer correct?Question #3
When you take a level 2 backup, what data is backed up?
Please select an optionIncorrectCorrect answer: A
Informix incremental backups are hierarchical: a level 2 backup captures everything changed since the most recent level 1 backup, while a level 1 captures changes since the level 0.
Was this answer correct?Question #4
Which two tasks can be performed through an Informix Grid? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: C, D
A grid propagates administrative work across its member servers, including copying external files to grid servers and automatically defining the replicates needed for replication; it does not install products or start servers.
Was this answer correct?Question #5
Which is NOT a component of the IBM Mobile Database offering?
Please select an optionIncorrectCorrect answer: D
The IBM Mobile Database offering bundles the embedded solidDB engine with Informix and DB2 as enterprise back ends; InfoSphere Warehouse is a separate data warehousing product and is not part of it.
Was this answer correct?Question #6
What is the purpose of the GRANT ADMIN privilege?
Please select an optionIncorrectCorrect answer: D
Membership in the built-in GRANT ADMIN role lets a user execute the SQL administration API functions (admin() and task()) in the sysadmin database; it does not itself confer DBSA status.
Was this answer correct?Question #7
Which statement is true about restartable restore?
Please select an optionIncorrectCorrect answer: B
Restartable restore is an ON-Bar feature: a physical restore that fails partway can be resumed with onbar -RESTART instead of starting over. ontape does not support it.
Was this answer correct?Question #8
In an organization, all employees are authenticated via domain wide Kerberos single sign- on. The DBSA wants to provide access to the database server for an employee without requesting the Operating System (OS) administrator to create a OS level user account. Which Informix feature does the DBSA need to leverage?
Please select an optionIncorrectCorrect answer: A
Mapped users let Informix authenticate and authorize users that have no operating system account by storing their properties in the surrogate user mapping tables, which fits a Kerberos single sign-on environment.
Was this answer correct?Question #9
Which option is available through ifx_grid_connect()?
Please select an optionIncorrectCorrect answer: D
ifx_grid_connect() accepts an argument that defers propagation of the DDL statements, so they are queued and applied to the other grid servers later rather than immediately.
Was this answer correct?Question #10
What are two requirements for the "ifxclone" utility? (Choose two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: C, D
ifxclone requires a trusted connection between source and target servers, and only one clone operation can run at a time; the source is normally the primary, and disk space types need not match.
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